Evidence map›Paper›PMID 19534489›Full record

ArticleACS nano2009

Stoichiometry and Structure of Poly(amidoamine) Dendrimer-Lipid Complexes.

Christopher V Kelly, Meghan G Liroff, L Devon Triplett, Pascale R Leroueil, Douglas G Mullen, Joseph M Wallace, Sasha Meshinchi, James R Baker, Bradford G Orr, Mark M Banaszak Holl

Open access · greenAbstract read
In one paragraph

Article in ACS nano, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
8.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 97 citations in OpenAlex.

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  19. Dendrimer-Fullerenol Soft-Condensed Nanoassembly.The journal of physical chemistry. C, Nanomaterials and interfaces · 2012
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 3 countries.

Christopher V KellyApplied Physics Program.
Meghan G Liroff
L Devon Triplett
Pascale R Leroueil
Douglas G Mullen
Joseph M Wallace
Sasha Meshinchi
James R Baker
Bradford G Orr
Mark M Banaszak Holl
University of Michigan–Ann Arbor · USSustainability Institute · ZAInstitute of Macromolecular Chemistry · UA

Funding

MICHIGAN MOLECULAR BIOPHYSICS TRAINING PROGRAMT32GM008270 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BROOKS, CHARLES L · 1988 to 2012
$4.5M
The Role of Cell Membrane Disruption in Non-Viral Vector Oligonucleotide DeliveryR01EB005028 · NIBIB · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BANASZAK HOLL, MARK M · 2006 to 2013
$2.8M
NIBIB NIH HHS R01 EB005028NIGMS NIH HHS T32 GM008270
6 · The paper itself

Abstract

The energetics, stoichiometry, and structure of poly(amidoamine) (PAMAM) dendrimer-phospholipid interactions were measured with isothermal titration calorimetry (ITC), transmission electron microscopy (TEM), atomic force microscopy (AFM), dynamic light scattering (DLS), and molecular dynamics (MD) simulations. Dendrimers of sixth-generation and smaller interacted with the lipids at an average stoichiometry and enthalpy proportional to the number of primary amines per dendrimers (4.5 ± 0.1 lipids/primary amine and 6.3 ± 0.3 kJ/mol of primary amines, respectively). Larger dendrimers, however, demonstrated a decreased number of bound lipids and heat release per primary amine, presumably due to the steric restriction of dendrimer deformation on the lipid bilayer. For example, eighth-generation PAMAM dendrimers bound to 44% fewer lipids per primary amine and released 63% less heat per primary amine as compared to the smaller dendrimers. These differences in binding stoichiometry support generation-dependent models for dendrimer-lipid complexation, which are consistent with previously observed generation-dependent differences in dendrimer-induced membrane disruption. Dendrimers of seventh-generation and larger bound to lipids with an average stoichiometry consistent with each dendrimer having been wrapped by a bilayer of lipids, whereas smaller dendrimers did not.

Identifiers

PMID19534489
PMCPMC2888816
OpenAlexW2048722815

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.